public FundingCreatedMessage Handle(AcceptChannelMessage acceptMessage, PendingChannel pendingChannel)
{
var oldState = LocalChannelState.AcceptChannel;
var openMessage = pendingChannel.OpenMessage;
_channelLoggingService.LogPendingChannelInfo(openMessage.TemporaryChannelId.ToHex(), oldState, "Remote accepted channel open");
FundingTransaction fundingTx = _fundingService.CreateFundingTransaction(openMessage.FundingSatoshis, openMessage.FeeratePerKw, openMessage.FundingPubKey, acceptMessage.FundingPubKey);
var channel = CreateChannel(pendingChannel.ChannelIndex, fundingTx, openMessage, acceptMessage);
channel.IsFunder = true;
_commitmentService.CreateInitialCommitmentTransactions(openMessage, acceptMessage, channel, pendingChannel.RevocationKey);
channel.State = LocalChannelState.FundingCreated;
var signatureOfRemoteCommitmentTx = channel.RemoteCommitmentTxParameters.LocalSignature;
FundingCreatedMessage fundingCreatedMessage = new FundingCreatedMessage
{
TemporaryChannelId = openMessage.TemporaryChannelId,
FundingTransactionId = fundingTx.Transaction.GetHash().ToBytes(),
FundingOutputIndex = fundingTx.FundingOutputIndex,
Signature = signatureOfRemoteCommitmentTx.ToRawSignature()
};
pendingChannel.Channel = channel;
_channelLoggingService.LogStateUpdate(channel, oldState, additionalData: fundingTx.Transaction.ToString());
return(fundingCreatedMessage);
}
public void HandleInvalidRemoteSignatureTest()
{
var mocks = new ChannelEstablishmentMocks();
var revocationKey = new ECKeyPair("DD06232AE9A50384A72D85CED6351DCB35C798231D4985615C77D6847F83FC65", true);
var handler = new FundingMessageSignedHandler(mocks.ChannelLoggingService.Object, mocks.FundingService.Object,
mocks.CommTxService.Object, mocks.ChannelService.Object, mocks.BlockchainMonitorService.Object);
OpenChannelMessage openChannelMessage = new OpenChannelMessage()
{
ChainHash = NetworkParameters.BitcoinTestnet.ChainHash,
TemporaryChannelId = "43497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea3309000000".HexToByteArray(),
FundingSatoshis = 420000,
PushMSat = 1000,
DustLimitSatoshis = 500,
MaxHtlcValueInFlightMSat = 50000,
ChannelReserveSatoshis = 5000,
HtlcMinimumMSat = 1100,
FeeratePerKw = 150,
ToSelfDelay = 133,
MaxAcceptedHtlcs = 156,
FundingPubKey = new ECKeyPair("0250d049da6b5832a9f2416df3b0db52da127426c2b70a35ca9c270a72f3f840b5", false),
RevocationBasepoint = new ECKeyPair("022ecc432552ff86d053514ffb133d3025fb14c39aa5ae2a5169b0367174cabfa4", false),
PaymentBasepoint = new ECKeyPair("029d100efe40aa3f58985fa12bd0f5c75711449ff4d30adca6f1968a2200bbbf1a", false),
DelayedPaymentBasepoint = new ECKeyPair("0250d049da6b5832a9f2416df3b0db52da127426c2b70a35ca9c270a72f3f840b5", false),
HtlcBasepoint = new ECKeyPair("03d029229db8f594adcd545b4a42acbb1013286908d2905fa05c9a4e2083fe3fe2", false),
FirstPerCommitmentPoint = new ECKeyPair("02846726efa57378ad8370acf094f26902a7f1e21903791ef4ab6f989da86679f2", false),
ChannelFlags = 1
};
var signature = "2f26e967305b4d422116a7c876d338bc4298263f329a54c0d1655f55d594de4955356386addd0bc15ced36dacece0af439694195654c838769583409eeac5d3f".HexToByteArray();
FundingSignedMessage fundingSignedMessage = new FundingSignedMessage()
{
ChannelId = "43497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea3309000000".HexToByteArray(),
Signature = signature
};
PendingChannel pendingChannel = new PendingChannel(mocks.Peer.Object, openChannelMessage, revocationKey, 0);
pendingChannel.Channel = mocks.CreateChannelMock();
pendingChannel.Channel.LocalCommitmentTxParameters = new CommitmentTransactionParameters();
mocks.CommTxService.Setup(c => c.IsValidRemoteCommitmentSignature(pendingChannel.Channel, It.IsAny <TransactionSignature>())).Returns(false);
mocks.Peer.Setup(m => m.Messaging).Returns(new Mock <IMessagingClient>().Object);
Assert.Throws <ChannelException>(() =>
handler.Handle(mocks.Peer.Object, fundingSignedMessage, pendingChannel));
}
public void Handle(IPeer peer, FundingSignedMessage message, PendingChannel pendingChannel)
{
var channel = pendingChannel.Channel;
var oldState = channel.State;
var signature = SignatureConverter.RawToTransactionSignature(message.Signature);
if (!_commitmentService.IsValidRemoteCommitmentSignature(channel, signature))
{
_channelLoggingService.LogError(channel, LocalChannelError.InvalidCommitmentSignature, $"Remote {peer.NodeAddress} sent us an invalid commitment signature");
string error = "Invalid commitment transaction signature.";
channel.State = LocalChannelState.FundingFailed;
peer.Messaging.Send(new ErrorMessage(message.ChannelId, error));
throw new ChannelException(error, channel);
}
channel.LocalCommitmentTxParameters.RemoteSignature = signature;
channel.State = LocalChannelState.FundingSigned;
_channelService.AddChannel(peer, channel);
_fundingService.BroadcastFundingTransaction(channel);
_blockchainMonitorService.WatchForTransactionId(channel.FundingTransactionId, (ushort)channel.MinimumDepth);
_channelService.RemovePendingChannel(pendingChannel);
_channelLoggingService.LogStateUpdate(channel, oldState);
}
public void HandleTest()
{
var mocks = new ChannelEstablishmentMocks();
var revocationKey = new ECKeyPair("DD06232AE9A50384A72D85CED6351DCB35C798231D4985615C77D6847F83FC65", true);
var handler = new AcceptChannelMessageHandler(mocks.ChannelLoggingService.Object, mocks.FundingService.Object, mocks.CommTxService.Object);
var localSig = "3045022100a5c01383d3ec646d97e40f44318d49def817fcd61a0ef18008a665b3e151785502203e648efddd5838981ef55ec954be69c4a652d021e6081a100d034de366815e9b".HexToByteArray();
OpenChannelMessage openChannelMessage = new OpenChannelMessage()
{
ChainHash = NetworkParameters.BitcoinTestnet.ChainHash,
TemporaryChannelId = "43497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea3309000000".HexToByteArray(),
FundingSatoshis = 420000,
PushMSat = 1000,
DustLimitSatoshis = 500,
MaxHtlcValueInFlightMSat = 50000,
ChannelReserveSatoshis = 5000,
HtlcMinimumMSat = 1100,
FeeratePerKw = 150,
ToSelfDelay = 133,
MaxAcceptedHtlcs = 156,
FundingPubKey = new ECKeyPair("0245b02f6672c2342fe3ced57118fcf4a0309327e32c335ce494365eb0d15b7200", false),
RevocationBasepoint = new ECKeyPair("02d91224d91760f477df21d24713b713c681b084e508f48dc77ca14db549ba8ceb", false),
PaymentBasepoint = new ECKeyPair("022b2aa486f5a8aca1898824ac3b2a8a15c92de813362846b992f94d923b143f92", false),
DelayedPaymentBasepoint = new ECKeyPair("0250d049da6b5832a9f2416df3b0db52da127426c2b70a35ca9c270a72f3f840b5", false),
HtlcBasepoint = new ECKeyPair("029d100efe40aa3f58985fa12bd0f5c75711449ff4d30adca6f1968a2200bbbf1a", false),
FirstPerCommitmentPoint = new ECKeyPair("022b2aa486f5a8aca1898824ac3b2a8a15c92de813362846b992f94d923b143f92", false),
ChannelFlags = 1
};
AcceptChannelMessage acceptChannelMessage = new AcceptChannelMessage()
{
TemporaryChannelId = "43497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea3309000000".HexToByteArray(),
DustLimitSatoshis = 500,
MaxHtlcValueInFlightMSat = 50000,
ChannelReserveSatoshis = 5000,
HtlcMinimumMSat = 1100,
ToSelfDelay = 133,
MaxAcceptedHtlcs = 156,
FundingPubKey = new ECKeyPair("0299de4bbf495e5bbeb2456c2beb3f40450a3fa41aaa50819ae201f8ad69226bfe", false),
RevocationBasepoint = new ECKeyPair("022b2aa486f5a8aca1898824ac3b2a8a15c92de813362846b992f94d923b143f92", false),
PaymentBasepoint = new ECKeyPair("02d91224d91760f477df21d24713b713c681b084e508f48dc77ca14db549ba8ceb", false),
DelayedPaymentBasepoint = new ECKeyPair("0341665cedb568e09f0ab2ab4a28bc2749620deacefb3dce61aac8251c91709d3a", false),
HtlcBasepoint = new ECKeyPair("0336439e36e2bc1f264c6d3bc6e12db6256389bef2056c32e6267d6e285c2b2122", false),
FirstPerCommitmentPoint = new ECKeyPair("039360132ab07e7f56d6782a644233da9c4c24845609fcd302cbedd69f69848358", false)
};
PendingChannel pendingChannel = new PendingChannel(mocks.Peer.Object, openChannelMessage, revocationKey, 0);
FundingTransaction fundingTransactionMock = mocks.CreateFundingTxMock(openChannelMessage.FundingPubKey, acceptChannelMessage.FundingPubKey);
mocks.FundingService.Setup(f => f.CreateFundingTransaction(openChannelMessage.FundingSatoshis,
openChannelMessage.FeeratePerKw, openChannelMessage.FundingPubKey, acceptChannelMessage.FundingPubKey))
.Returns(fundingTransactionMock);
mocks.CommTxService.Setup(f => f.CreateInitialCommitmentTransactions(openChannelMessage, acceptChannelMessage, It.IsAny <LocalChannel>(), revocationKey))
.Callback <OpenChannelMessage, AcceptChannelMessage, LocalChannel, ECKeyPair>((openMessage, acceptMessage, channel, rkey) =>
{
channel.RemoteCommitmentTxParameters = new CommitmentTransactionParameters();
channel.RemoteCommitmentTxParameters.LocalSignature = new TransactionSignature(localSig, SigHash.All);
});
FundingCreatedMessage fundingCreatedMessage = handler.Handle(acceptChannelMessage, pendingChannel);
Assert.Equal("15fadebd5a68d2d9f216a2dc5531c4dbc977eac0c42ab97899e21d549dddbefa", fundingCreatedMessage.FundingTransactionId.ToHex());
Assert.Equal(new TransactionSignature(localSig, SigHash.All).ToRawSignature().ToHex(), fundingCreatedMessage.Signature.ToHex());
Assert.Equal(0, fundingCreatedMessage.FundingOutputIndex);
Assert.Equal("43497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea3309000000", fundingCreatedMessage.TemporaryChannelId.ToHex());
}
public void HandleTest()
{
var mocks = new ChannelEstablishmentMocks();
var revocationKey = new ECKeyPair("DD06232AE9A50384A72D85CED6351DCB35C798231D4985615C77D6847F83FC65", true);
var handler = new FundingMessageSignedHandler(mocks.ChannelLoggingService.Object, mocks.FundingService.Object,
mocks.CommTxService.Object, mocks.ChannelService.Object, mocks.BlockchainMonitorService.Object);
OpenChannelMessage openChannelMessage = new OpenChannelMessage()
{
ChainHash = NetworkParameters.BitcoinTestnet.ChainHash,
TemporaryChannelId = "43497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea3309000000".HexToByteArray(),
FundingSatoshis = 420000,
PushMSat = 1000,
DustLimitSatoshis = 500,
MaxHtlcValueInFlightMSat = 50000,
ChannelReserveSatoshis = 5000,
HtlcMinimumMSat = 1100,
FeeratePerKw = 150,
ToSelfDelay = 133,
MaxAcceptedHtlcs = 156,
FundingPubKey = new ECKeyPair("0250d049da6b5832a9f2416df3b0db52da127426c2b70a35ca9c270a72f3f840b5", false),
RevocationBasepoint = new ECKeyPair("022ecc432552ff86d053514ffb133d3025fb14c39aa5ae2a5169b0367174cabfa4", false),
PaymentBasepoint = new ECKeyPair("029d100efe40aa3f58985fa12bd0f5c75711449ff4d30adca6f1968a2200bbbf1a", false),
DelayedPaymentBasepoint = new ECKeyPair("0250d049da6b5832a9f2416df3b0db52da127426c2b70a35ca9c270a72f3f840b5", false),
HtlcBasepoint = new ECKeyPair("03d029229db8f594adcd545b4a42acbb1013286908d2905fa05c9a4e2083fe3fe2", false),
FirstPerCommitmentPoint = new ECKeyPair("02846726efa57378ad8370acf094f26902a7f1e21903791ef4ab6f989da86679f2", false),
ChannelFlags = 1
};
// AcceptChannelMessage acceptChannelMessage = new AcceptChannelMessage()
// {
// TemporaryChannelId = "43497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea3309000000".HexToByteArray(),
// DustLimitSatoshis = 500,
// MaxHtlcValueInFlightMSat = 50000,
// ChannelReserveSatoshis = 5000,
// HtlcMinimumMSat = 1100,
// ToSelfDelay = 133,
// MaxAcceptedHtlcs = 156,
// FundingPubKey = new ECKeyPair("0299de4bbf495e5bbeb2456c2beb3f40450a3fa41aaa50819ae201f8ad69226bfe", false),
// RevocationBasepoint = new ECKeyPair("022b2aa486f5a8aca1898824ac3b2a8a15c92de813362846b992f94d923b143f92", false),
// PaymentBasepoint = new ECKeyPair("02d91224d91760f477df21d24713b713c681b084e508f48dc77ca14db549ba8ceb", false),
// DelayedPaymentBasepoint = new ECKeyPair("0341665cedb568e09f0ab2ab4a28bc2749620deacefb3dce61aac8251c91709d3a", false),
// HtlcBasepoint = new ECKeyPair("0336439e36e2bc1f264c6d3bc6e12db6256389bef2056c32e6267d6e285c2b2122", false),
// FirstPerCommitmentPoint = new ECKeyPair("039360132ab07e7f56d6782a644233da9c4c24845609fcd302cbedd69f69848358", false)
// };
var signature = "2f26e967305b4d422116a7c876d338bc4298263f329a54c0d1655f55d594de4955356386addd0bc15ced36dacece0af439694195654c838769583409eeac5d3f".HexToByteArray();
FundingSignedMessage fundingSignedMessage = new FundingSignedMessage()
{
ChannelId = "43497fd7f826957108f4a30fd9cec3aeba79972084e90ead01ea3309000000".HexToByteArray(),
Signature = signature
};
PendingChannel pendingChannel = new PendingChannel(mocks.Peer.Object, openChannelMessage, revocationKey, 0);
pendingChannel.Channel = mocks.CreateChannelMock();
pendingChannel.Channel.LocalCommitmentTxParameters = new CommitmentTransactionParameters();
pendingChannel.Channel.FundingTransactionId = "txId";
mocks.CommTxService.Setup(c => c.IsValidRemoteCommitmentSignature(pendingChannel.Channel, It.IsAny <TransactionSignature>())).Returns(true);
handler.Handle(mocks.Peer.Object, fundingSignedMessage, pendingChannel);
Assert.Equal(LocalChannelState.FundingSigned, pendingChannel.Channel.State);
Assert.Equal(signature, pendingChannel.Channel.LocalCommitmentTxParameters.RemoteSignature.ToRawSignature());
mocks.FundingService.Verify(f => f.BroadcastFundingTransaction(pendingChannel.Channel), Times.Once);
mocks.BlockchainMonitorService.Verify(m => m.WatchForTransactionId(pendingChannel.Channel.FundingTransactionId, 3), Times.Once);
mocks.ChannelService.Verify(c => c.RemovePendingChannel(pendingChannel), Times.Once);
}